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United States Patent | 6,105,845 |
Aebersold ,   et al. | August 22, 2000 |
In an apparatus for connecting two workpieces (1) together by a welded seam, the workpieces are held in a welding station between opposed tracks consisting of a plurality of members. The tracks run around guide rollers in a conveying direction. A clearance (a) between the guide rollers which come first in the conveying direction can be changed upon insertion of the workpieces between the tracks.
Inventors: | Aebersold; Hans (Birmensdorf, CH); Gross; Norbert (Zurich, CH); Urech; Werner (Kaiserstuhl, CH) |
Assignee: | Elpatronic AG (Bergdietikon, CH) |
Appl. No.: | 942663 |
Filed: | October 2, 1997 |
May 15, 1995[CH] | 1409/95 |
Current U.S. Class: | 228/4.1; 198/458; 198/626.5; 228/6.1; 228/49.4 |
Intern'l Class: | B23K 037/04 |
Field of Search: | 228/4.1,6.1,49.4,212,1 198/458,626.5,626.6 219/158,161 |
2841270 | Jul., 1958 | Bombard | 198/626. |
3809207 | May., 1974 | Euverard | 198/458. |
3882995 | May., 1975 | Uraya | 198/626. |
4352447 | Oct., 1982 | Bonaddio et al. | 225/2. |
5131581 | Jul., 1992 | Geiermann | 228/49. |
5276304 | Jan., 1994 | Sauvage et al. | 219/121. |
5328083 | Jul., 1994 | Peru et al. | |
5364006 | Nov., 1994 | Gilles et al. | 228/4. |
5630269 | May., 1997 | Wasserbaech et al. | 29/559. |
Foreign Patent Documents | |||
0 565 846 | Mar., 1993 | EP. |